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MAXI/GSC detection of a flare from HR 1099 (V711 Tau)

ATEL # 2401; M. Suzuki (JAXA), S. Nakahira (AGU), M. Matsuoka, K. Kawasaki, S. Ueno, H. Tomida, M. Ishikawa (JAXA), T. Mihara, M. Kohama, Y.E. Nakagawa, M. Sugizaki, T. Yamamoto (RIKEN), N. Kawai, M. Morii, K. Sugimori (Tokyo Tech), A. Yoshida, K.Yamaoka, S. Nakahira (AGU), H. Tsunemi, M. Kimura (Osaka U.), H. Negoro, M. Nakajima, S. Miyoshi, H. Ozawa, R. Ishiwata (Nihon U.), Y. Ueda, N. Isobe, S. Eguchi, K. Hiroi (Kyoto U.), A. Daikyuji (Miyazaki U.) report on behalf of the MAXI team
on 24 Jan 2010; 4:09 UT
Password Certification: Motoko Suzuki (motoko@crab.riken.jp)

Subjects: X-ray, Variables

MAXI/GSC detected a flare from the RS CVn type variable HR 1099 (V711 Tau) during the transit starting at UT 2010-01-23T05:17:55. The preliminary flux of the source in the 1.5-10 keV band was about 130 mCrab. There was no significant detection at the location in the previous orbit (92 min before the detection) with an upper limit of 20 mCrab. At the time of the following transit of the location, the source was marginally detected with the flux of about 30 mCrab in the same energy band.


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